A) 15
B) 9
C) 6
D) 3
Correct Answer: C
Solution :
When an electron jumps from n to ground state (ie, n = 1), the number of spectral lines \[=\frac{n(n-1)}{2}\] \[\therefore \] When an electron jumps from n = 4 level number of spectral lines \[=\frac{4(4-1)}{2}\] \[=\frac{4\times 3}{2}=6\]You need to login to perform this action.
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